1.HIGH-QUALITY MATERIALS: The cup holder is made of mirror-surfaced chrome-plated aluminum alloy, and the handle is made of high-strength steel. The surface is smooth, easy to clean, corrosion-resistant and durable. 2.MULTIFUNCTIONAL CUP HOLDER: There are two detachable foam insulation layers inside the cup holder. The insulation layer not only helps keep your drinks hot or cold, but also fixes small cups so that they will not shake or even roll over when driving on bumpy roads. There is a drain hole at the bottom of the cup holder. When your cold drink precipitate water or overflows, you can drain the water in time to keep the inside of the cup holder clean and dry. 3.SIMPLE INSTALLATION:The product comes with a portable "L" double-head screwdriver, which can be quickly installed and disassembled with the screwdriver anytime and anywhere. 4.WHERE CAN IT BE INSTALLED: Suitable for Harley, ATV, UTV, motorcycle, bike. Fits 7/8" to 1 1/4" handlebars(7/8" =22mm; 1" = 25mm; 1 1/4" =32mm).